Ptolemy/Ptolemaic coin... Philomentor/Cleopatra as ISIS?

[DrP]

I got this small Ptolemaic coin recently. I've tried researching it and I think it is Ptolemy VI Philometor or Cleopatra as Isis.  Any ideas? Is it Philometor? Is it Cleopatra?   Definitely the bust of Isis though I think. 

[Paddy]

I cannot hope to get this one exactly, but this web page may get you closer, if you haven't already used it:

http://ptolemybronze.com/ptolemy_series.html

The size might help to home in on which  it is - certainly from around the time of Ptolemy VI but which mint will be the question.